Standardize usage of virtual/override/final in chrome/browser/ui/

chrome/browser/ui/webui/options/options_browsertest.h

Index: chrome/browser/ui/webui/options/options_browsertest.h
diff --git a/chrome/browser/ui/webui/options/options_browsertest.h b/chrome/browser/ui/webui/options/options_browsertest.h
index 04723fe31eb6f09d41c7764cf79d4d33e804ef95..638a57b36ba4aca76f9da000cc1cb2c29325b9e8 100644
--- a/chrome/browser/ui/webui/options/options_browsertest.h
+++ b/chrome/browser/ui/webui/options/options_browsertest.h
@@ -24,10 +24,10 @@ class OptionsBrowserTest : public WebUIBrowserTest,
 
  private:
   // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() override;
+  void RegisterMessages() override;
 
   // WebUIBrowserTest implementation.
-  virtual content::WebUIMessageHandler* GetMockMessageHandler() override;
+  content::WebUIMessageHandler* GetMockMessageHandler() override;
 
   // A callback for the 'optionsTestReportHistory' message, this sends the
   // URLs in the "back" tab history, including the current entry, back to the